Turbo Melee Mode significantly decreases the time user has to wait between knife attacks in Modern Warfare 2 and Modern Warfare 3. It can also be used to decrease the wait time between Riot Shield melee attacks. Turbo Melee is compatible with both "standard" and "tactical" button configurations.
How Does Turbo Melee Mode Work?

Once you have activated Turbo Melee Mode, all you need to do to perform a Melee attack is press your melee attack button (Right Tnumbstick in default button layout). Get ready for knife attack multi kill sprees! Or easier kills with the riot shield! Please note, Turbo Melee glitch requires the combatant to be holding Semtex.

How Do I Operate Turbo Melee Mode?

Turbo Melee comes with 2 default sub modes :

Mode 1 - Modern Warfare 3 (must be equipped with Semtex grenade)

Mode 2 - Black Ops 2 (must be equipped with Semtex grenade)

To activate Turbo Melee Mode, hold mode switch on the back of the controller + hold THROW LETHAL (R2 Button in default button layout) The Player 3 LED will twinkle to let user knows that he has activated Turbo Melee Mode.

NOTE: In order for Turbo Melee to perform correctly, your soldier needs to carry Semtex Grenade.

To disable Turbo Melee Mode, hold the mode switch on the back of the controller hold mode switch on the back of the controller + hold THROW LETHAL (R2 Button in default button layout). Player 3 LED will twinkle and then go OFF to let you know that this special feature has been turned OFF.

You can always turn all exclusive mods OFF by holding mode switch on the back of the controller and taping X Button at any time.